稠油废水去除COD工艺的试验孙绳昆

稠油废水去除COD工艺的试验孙绳昆　洪　海(辽河油田设计院　辽宁省盘锦市　124010)　　　稠油废水处理的达标外排,其中处理的关键污染指标为COD(化学需氧量)。近几年来,对稠油废水去除COD技术进行了大量试验研究,采用物理法、化学氧化法、生物法等去除辽河油田稠油废水中的COD。稠油废水中COD基本以油—湿固体悬浮物、胶体和溶解态三种状态存在。不同处理方法侧重点不同。凝聚、浮选和过滤主要以悬浮态和胶体态COD为去除对象;氧化法、生物法和吸附法主要以溶解态COD为去除对象。只有针对组成COD物质的性质和状态,将各种处理方法有机组合,才能将COD降到100mg/L以下,使废水可达标外排。　　　　　　1.概述,,,。,,6×104t,,COD。,,:①,950kg/m3;②,;③,70～80℃;④;⑤;⑥,BOD/COD0.2,CODcr2000mg/L,400～500mg/L,,,。2.稠油废水去除COD试验2.1　:※※(CAX)※()※。1。1　　COD(mg/L)400～500110～150400～480120～150400～500150～180400～450160～2002.2　,12.5mg/L,1.0m3/h0.4m3/h。:※※※※※。2。2.3　,25kg,1.0m3/h。1.0m3/h,1h,COD402mg/L,1COD144mg/L,COD166mg/L。2.4　、,12.5mg/L,25kg,1.0m3/h0.4m3/h。:※※※※※※。3。30　油气田地面工程(OGSE)　第19卷第3期(2000.5)　2　COD(mg/L)COD(mg/L)COD(%)(m3/h)13208220231686213336661632478191125614636228012230324016240424815438528012230624016240726413834828012230927213032262140340.4　:COD402mg/L3　、COD(m3/h)COD(mg/L)10min15min20min30min40min45min50min60min1.01201201681121120.47288801202.5　、、4。4　、COD(mg/L)400400600(mg/L)150100(min)303090COD(mg/L)290252490(%)273719　:2.6　,250m3/h,300mg/L,20mg/L,20mg/L。:※※※※※※。COD450mg/L,COD250mg/L,44%,COD。3.试验初步结论(1)(、、)30%～40%COD。(2)COD。(3)COD,35%,COD260mg/L。(4)COD,75%,COD100mg/L。(5)、COD,27%～37%,COD250～300mg/L。(6)COD。36—1:CODcr434mg/L、BOD593.6mg/L。:、、69。(、、),、。,,,COD。COD,,COD,。COD—、。。、COD;、COD。,、、,COD100mg/L。COD,,COD100mg/L,。(　1999-12-02　　　)31　油气田地面工程(OGSE)　第19卷第3期(2000.5)　nologyhasmoreproblems,recoveryamountdecreasingsothattheeconomicbenefitdecreasing.Inordertoraisethelighthydrocarbonrecoveryratethroughrepeateddemonstrationandcalculationtheauthorsusethestrippingcommonlyusedinoilrefineryincrudestabilizationlighthydrocarbonrecoverytechnologyandat-taingoodtechnologyresult,economicbenefitremarkable.Subjectterms:oil-gasgatheringandtransferring/crudestabilization/stripping/minuspressure/fieldtest/analysisYanJiyongetc27　NaturalGasDesulfurizationTechnologyandItsApplicationatDaqingOilfieldJiangXuetianetc29　ControlParametersofSwitchProceduresofCondensateLiquidDehydrationandGasDryingDevicesWangSiqiang30　TechnologyExperimenttoRemovingChemicalAerobe(COD)FromHeavyOilSewageThekeylinkoftreatingheavyoilsewageispollutionindex-CODattainingstandard.TheauthorhasmadealotofexperimentonremovingCODfromheavyoilsewageinrecentyears.Usingphysical,chemicalbioetcmethodstheauthorsummariseshisworkandputsforwardsomeviewpointinthearticletoremoveCODinLiaoheheavyoilsewage.Subjectterms:heavyoilsewage/chemicalaerobe/physical-chemicaltreatment/oxidizing-reductionreaction/biologytreatment/technology/experi-mentSunShengkunetc32　DesignandApplicationofAKindofThree-PhaseSeparatorGuoGuifenetc34　EngineeringDesignofKaramaitheFourthWaterPlantThewaterplanttakesSanpingreservoirasitssourceofwater,watertransferrigcapacity11×104m3/d.Wa-terpurificationplantissituatedat9kmnorth-eastofKaramaicity,1.1kmsouth-westofSanpingreservoir,capacity10×104m3/d.Theplantuseswaterpurificationtechnologyofsmallgridsholeroomreaction,VTypefiltrationpoolandsmallspacetiltedplatessediment.Backwashwateroffiltrationpoolandthesedi-mentdischargingmudwaterrecover.Designcapacityofwaterdistributionpipelinenetworksis10×104m/d.Theoverallinvestmentoftheengineering130millionyuan.Subjectterms:Karamai/watersupply/purification/mix/react/settling/filtrationWangAijunetc36　StudyonWaterPurificationAgentofJidongOilfieldSewageOilcontentinsewageinJidongoilfieldishigherandsometimeexceedindex.ForthistheauthorsdevelopWT-WC/D-3newtypecationswaterpurificationagent.Whenaddingamountis15mg/L,theoilfieldsewagecanbetreatedtoaccordwithdischargestandard.Throughdeterminingtheoilremovalrateandfloctheauthorsstudythecomplexingrateanditsaffectingfactors.Subjectterms:sewage/clean/purify/study/cationssurfactantsFanZhenzhongetcⅢ38　StrengthofLiquidFilmofComplexDriveEmulsionInfluencedbyChemicalAgentThisarticleputsforwardasimpleandeffectivestudyingmethodandstudiesthestrengthofemulsionfilminfluencedbychemicals.Itisconducivetostudythemicroscopicmechanismofchemicalsactingtofluidfilm.Theresultcanbeprovidedforreferenceoftreatingtechniqueofproducedliquidbythree-elementcom-plexdrive.Subjectterms:complexdrive/emulsion/strengthoffilm/caustic/surfactants/polymerXuXinshuetc41　DiscussiononSolidificationPercentageDetectingMethodofWeldedEpoxyPowderCoatingLiuQingruietc43　CementMortarsLiningPipelineAnticorrosionTechnologyDongXuewang